Answer :
It’s B. Digestion is breaking down food to pass down and fire is chemically changing the partials
As Henry is the community investigating the source of the chemical energy for his science experiment.
- He has the option of using the squirrel eating acorns and the fire burning.
- As he can use them as an experiment base and it's totally safe.
- Thus the best method to test his experiment is by using the naturla resource like acorns and testing them. Thus he can use them for his purpose.
Hence the option B is correct.
Learn more about the investigating sources of chemical energy.
brainly.in/question/12858912.